The two players are 2-2 in head-to-heads with Vinci beating the Dane when she was the top-ranked player in 2011.
The 24-year-old Wozniacki, now ranked 15th, has won at least one WTA title every year since 2008.
Winston: 'I learned from my mistakes'
College football • Jameis Winston wants to look to the season ahead as the Heisman Trophy-winning quarterback for reigning national champion Florida State. He also knows he has to answer questions about his off-field conduct.
"I understand the spotlight," Winston said Sunday on the first of the Atlantic Coast Conference's two-day preseason kickoff event. "I understand what it is to be a leader and I'm bettering myself every single day to hold myself to that standard that everyone views me as, you know? Because I'm on a pedestal. Other players don't get the privilege of being on that pedestal."
Winston was investigated for sexual assault during last season. A prosecutor in Tallahassee, Florida, decided in December not to charge him due to a lack of evidence and gaps in the accuser's story.
Then in April, he was cited for walking out of a supermarket without paying for crab legs and crawfish.
He did not address specifics of the incident Sunday during an hour-long interview session that had about 60 reporters crowded around his table.
Bourdais, Conway win in Toronto
Auto racing • IndyCar ran two races in Toronto on Sunday, where rain wreaked havoc on both the schedule and driver strategy.
The series had planned to run one race Saturday and one on Sunday until rain washed out the first event. It instead began Sunday morning, roughly five hours before the start of the second race, and won by Sebastien Bourdais. He broke a 52-race losing streak dating to 2007 in claiming a dominating win on the dry street course at Exhibition Place.
But the rain returned for the second race, and IndyCar officials moved the start up 10 minutes in an attempt to run as much as possible in dry conditions. The sky eventually did open, the track became slick and drivers darted to pit road for rain tires.
When the track began to dry, Mike Conway gambled and made an early stop to remove his rain tires. A caution minutes later sent the bulk of the field to pit road to change their tires, and Conway shot up the leaderboard.
Conway was fifth on the restart, but his dry tires were far superior to the drivers still racing on rain tires, and he quickly moved through the field and into the lead. The race, which had been scheduled to run 65 laps or 80 minutes, whichever came first, then became a timed race.
• Nico Rosberg won the German Grand Prix on Sunday to stretch his lead in the Formula One drivers' championship over Mercedes teammate Lewis Hamilton, who finished third after starting 20th.
"It's an amazing feeling to win at home. It's a very special day," said Rosberg, who led throughout to become the first German to triumph at Hockenheim since Michael Schumacher won in 2006.
Hamilton, who crashed in qualifying, could not pass Valtteri Bottas in the closing laps and the Finn took second to give Williams its 300th F1 podium finish.
From wire reports